CPDFTK is a commercial, supported implementation of pdftk. It is a set of command line tools for manipulating PDF files with the same interface as the popular open source pdftk tools. It can split, merge, linearize, scale, rotate, crop, encrypt, decrypt, watermark, bookmark, annotate, attach, and impose files.
jPDFAssemble is a Java library to assemble PDF files. It can combine, merge, or split PDF documents, and allows the addition or manipulation of bookmarks. It can save resulting documents to the local filesystem or to an output stream, to be able to serve the documents directly to a client browser when working within a J2EE server. jPDFAssemble is built on top of Qoppa's proprietary PDF technology, so you do not have to install any third party software or drivers. It is also 100% Java, so it is completely platform-independent.
jPDFFields is a Java library for working with interactive PDF forms in both AcroForm and XFA formats. It allows your application to get and set field values, and can import and export to the FDF, XFDF, and XDP formats. It can also "flatten" fields in a document. (Flattening is the process of merging the fields into the PDF content layer so the information is retained, but as static PDF content.) jPDFFields is built on top of Qoppa's proprietary PDF technology, so it is 100% Java and does not require any third party software or drivers.
jPDFSecure is a Java library which can digitally sign PDF documents and change security settings on PDF Documents. With jPDFSecure, your application or Java applet can encrypt PDF documents, set permissions and passwords, and create and apply digital signatures. jPDFSecure is optimized for performance and is built on top of Qoppa's proprietary PDF technology, so there is no need for any third party software or drivers. jPDFSecure has a simple interface to load PDF documents from files, network drives, URLs, and even input streams, which can be generated at runtime or come directly from a database. After changing security settings, jPDFSecure can save the document to a file, a java.io.OutputStream, or a javax.servlet.ServletOutputStream when running in a J2EE application server to output the file directly to a browser. jPDFSecure is platform-independent and can be used in any environment which supports Java.
Recover PDF password for Mac recovers passwords for PDF files in case they were lost or forgotten. It unlocks both user and owner passwords for PDF files, so you will be able to open password-protected PDFs, print, edit, and copy them. If your PDF file is only protected with an owner password, you can use the "Decrypt" option and create an unprotected copy of PDF file even without searching for the password. This program features various methods of password recovery: by password length, by template, by dictionary, and exhaustive search method. Dictionary search is a time-saver if you can remember that the password is a word or a word combination or modification. PDF Password Unlocker is optimized for efficient work on multi-core computers for higher password search speed. It supports all versions of Adobe Acrobat up to version 9. PDF Password unlocker for Mac can recover Unicode passwords and passwords created in various languages and keyboard layouts. Recover PDF Password can also remove digital signatures from your PDF files.
PDF Studio is an easy to use yet powerful PDF editor. It maintains full compatibility with the PDF format and supports most PDF functions. It allows you to view, print, and search PDF files, review and annotate documents with text, graphics, and sound, scan to PDF, fill in and save forms, secure documents with passwords and permissions, merge, split, and assemble documents, convert Word, image, and text files to PDF, and add bookmarks, watermarks, headers, and footers. It is integrated with Google Apps and Sharepoint. The Pro version allows content editing, permanent manual redaction, batch processing, precision measuring tools, digital signatures, and preflight PDFs with PDF/X profiles.
Proview is a PDF editor that allows you to merge and split files; rotate, flip, and scale individual pages or all pages; crop pages; and modify the document information. It can edit encrypted files, and can decrypt and encrypt PDF documents. You can also manage PDF bookmarks, add or remove PDF attachments, and add text and dates to one or more pages. Proview has a simple, clean interface with all functions easily accessible, and it comes with full interactive help.